#answer-wrap .select {
    display: inline-block;
    width: 100px;
    height: 40px;
    position: relative;
    cursor: pointer;
}

#answer-wrap .select_default {
    width: 80px;
    height: 32px;
    line-height: 32px;
    padding: 0 10px;
    margin:3px;
    margin-left:30px;
    border: solid 1px #ccc;
    border-radius: 5px;
}

#answer-wrap .select_default::after {
    content: "";
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #999;
    position: absolute;
    right: -25px;
    top: 19px;
}

#answer-wrap .select_item {
    opacity: 0;
    position: absolute;
    z-index: 4;
    margin:3px;
    margin-left: 30px;
    list-style: none;
    background-color: #fff;
    border-radius: 5px;
}

#answer-wrap .select_item li {
    width: 80px;
    height: 32px;
    line-height: 32px;
    padding: 0 10px;
    border: 1px solid transparent;
    border-radius: 5px;
    border-top: none;
}

#answer-wrap .select_item li:hover {
    background-color: #666;
    color: #fff;
}